Suffolk County Water Authority
2021 Supplemental Report

(For Calendar Year of 2020)

This Supplemental Report contains raw water quality information from each of our 240 wellfields. The range of data presented here shows the lowest value, the highest value, and the average value for a detected analyte, as well as the total number of tests done at each wellfield. These values represent an average of all the individual wells at each wellfield. For a list of analytes we tested for but were not detected, click the Negative Analytes button below.



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